/* ============================================
   LOGIN v3 - Framework 21BS4
   Design pulito e moderno, senza sfondi pesanti
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&display=swap');

:root {
    --lg-primary: #2563eb;
    --lg-primary-hover: #1d4ed8;
    --lg-primary-soft: #eff6ff;
    --lg-danger: #dc2626;
    --lg-danger-bg: #fef2f2;
    --lg-danger-border: #fecaca;
    --lg-success: #16a34a;
    --lg-success-bg: #f0fdf4;
    --lg-success-border: #bbf7d0;
    --lg-warn: #f59e0b;
    --lg-text: #1e293b;
    --lg-text-muted: #64748b;
    --lg-border: #e2e8f0;
    --lg-bg: #f8fafc;
    --lg-card: #ffffff;
    --lg-input-bg: #f8fafc;
    --lg-input-focus: #ffffff;
    --lg-radius: 12px;
    --lg-radius-sm: 8px;
    --lg-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.06);
    --lg-shadow-hover: 0 4px 6px rgba(0,0,0,0.04), 0 10px 30px rgba(0,0,0,0.08);
    --lg-speed: 0.2s ease;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }

body.login-page {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--lg-bg);
    color: var(--lg-text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 24px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---- Wrapper ---- */
.lg-wrapper {
    width: 100%;
    max-width: 420px;
}

/* ---- Card ---- */
.lg-card {
    background: var(--lg-card);
    border-radius: var(--lg-radius);
    box-shadow: var(--lg-shadow);
    padding: 40px 36px 36px;
    border: 1px solid var(--lg-border);
    transition: box-shadow var(--lg-speed);
}
.lg-card:hover {
    box-shadow: var(--lg-shadow-hover);
}

/* ---- Header ---- */
.lg-header {
    text-align: center;
    margin-bottom: 28px;
}
.lg-logo {
    max-height: 48px;
    max-width: 200px;
    margin-bottom: 14px;
    object-fit: contain;
}
.lg-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--lg-text);
    margin: 0 0 4px;
    letter-spacing: -0.3px;
}
.lg-subtitle {
    font-size: 14px;
    color: var(--lg-text-muted);
    margin: 0;
    font-weight: 400;
    line-height: 1.5;
}

/* ---- Sezioni animate ---- */
.lg-section {
    animation: lgFadeIn 0.3s ease;
}
@keyframes lgFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---- Form Group ---- */
.lg-group {
    margin-bottom: 20px;
}
.lg-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--lg-text);
    margin-bottom: 6px;
}

/* ---- Inputs ---- */
.lg-input {
    width: 100%;
    padding: 11px 14px;
    font-size: 15px;
    font-family: inherit;
    color: var(--lg-text);
    background: var(--lg-input-bg);
    border: 1.5px solid var(--lg-border);
    border-radius: var(--lg-radius-sm);
    outline: none;
    transition: all var(--lg-speed);
}
.lg-input::placeholder { color: #94a3b8; }
.lg-input:focus {
    background: var(--lg-input-focus);
    border-color: var(--lg-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.lg-input:disabled { opacity: 0.55; cursor: not-allowed; }

/* ---- Password wrapper ---- */
.lg-pwd-wrap { position: relative; }
.lg-pwd-wrap .lg-input { padding-right: 44px; }
.lg-pwd-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--lg-text-muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    transition: color var(--lg-speed);
}
.lg-pwd-toggle:hover { color: var(--lg-text); }

/* ---- Checkbox row ---- */
.lg-check-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}
.lg-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
    color: var(--lg-text-muted);
    user-select: none;
}
.lg-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--lg-primary);
    cursor: pointer;
    margin: 0;
}

/* ---- Bottoni ---- */
.lg-btn {
    display: block;
    width: 100%;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    color: #fff;
    background: var(--lg-primary);
    border: none;
    border-radius: var(--lg-radius-sm);
    cursor: pointer;
    transition: all var(--lg-speed);
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}
.lg-btn:hover:not(:disabled) {
    background: var(--lg-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37,99,235,0.25);
}
.lg-btn:active:not(:disabled) { transform: translateY(0); }
.lg-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Loading spinner */
.lg-btn.is-loading { color: transparent; pointer-events: none; }
.lg-btn.is-loading::after {
    content: '';
    position: absolute;
    left: 50%; top: 50%;
    width: 20px; height: 20px;
    margin: -10px 0 0 -10px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: lgSpin 0.6s linear infinite;
}
@keyframes lgSpin { to { transform: rotate(360deg); } }

/* ---- Alert ---- */
.lg-alert {
    padding: 12px 14px;
    border-radius: var(--lg-radius-sm);
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 20px;
    display: none;
}
.lg-alert.is-visible {
    display: block;
    animation: lgFadeIn 0.25s ease;
}
.lg-alert-error {
    background: var(--lg-danger-bg);
    color: var(--lg-danger);
    border: 1px solid var(--lg-danger-border);
}
.lg-alert-success {
    background: var(--lg-success-bg);
    color: var(--lg-success);
    border: 1px solid var(--lg-success-border);
}
.lg-alert-info {
    background: var(--lg-primary-soft);
    color: var(--lg-primary);
    border: 1px solid #bfdbfe;
}

/* ---- Link ---- */
.lg-link {
    font-size: 13px;
    color: var(--lg-primary);
    text-decoration: none;
    cursor: pointer;
    font-weight: 500;
    transition: color var(--lg-speed);
    background: none;
    border: none;
    padding: 0;
    font-family: inherit;
}
.lg-link:hover { color: var(--lg-primary-hover); text-decoration: underline; }

/* ---- Back button ---- */
.lg-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--lg-text-muted);
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    font-family: inherit;
    margin-bottom: 20px;
    transition: color var(--lg-speed);
}
.lg-back:hover { color: var(--lg-text); }
.lg-back svg { width: 14px; height: 14px; }

/* ---- Footer card ---- */
.lg-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--lg-border);
}
.lg-footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* ---- Icon centrato (per OTP e password scaduta) ---- */
.lg-icon-block {
    text-align: center;
    margin-bottom: 24px;
}
.lg-icon-block svg { margin-bottom: 12px; }

/* ---- Requisiti password ---- */
.lg-pwd-rules {
    margin: 8px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 16px;
}
.lg-pwd-rules li {
    font-size: 12px;
    color: var(--lg-text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color var(--lg-speed);
}
.lg-pwd-rules li .ck {
    width: 14px; height: 14px;
    border-radius: 50%;
    border: 1.5px solid var(--lg-border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    transition: all var(--lg-speed);
    flex-shrink: 0;
    color: transparent;
}
.lg-pwd-rules li.is-valid { color: var(--lg-success); }
.lg-pwd-rules li.is-valid .ck {
    background: var(--lg-success);
    border-color: var(--lg-success);
    color: #fff;
}

/* ---- Schermata conferma email ---- */
.lg-confirm-screen {
    text-align: center;
    animation: lgFadeIn 0.4s ease;
}
.lg-confirm-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--lg-text);
    margin: 0 0 12px;
}
.lg-confirm-msg {
    font-size: 14px;
    color: var(--lg-text-muted);
    line-height: 1.6;
    margin: 0 0 20px;
}
.lg-confirm-hint {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    text-align: left;
    background: var(--lg-bg);
    border: 1px solid var(--lg-border);
    border-radius: var(--lg-radius-sm);
    padding: 14px 16px;
    margin-bottom: 24px;
    font-size: 12px;
    color: var(--lg-text-muted);
    line-height: 1.5;
}
.lg-confirm-hint svg {
    flex-shrink: 0;
    margin-top: 1px;
    color: var(--lg-text-muted);
}
.lg-btn-back-login {
    background: var(--lg-card);
    color: var(--lg-text);
    border: 1.5px solid var(--lg-border);
}
.lg-btn-back-login:hover:not(:disabled) {
    background: var(--lg-bg);
    border-color: var(--lg-text-muted);
    box-shadow: none;
    transform: none;
}

/* ---- Utility ---- */
.d-none  { display: none !important; }
.mt-8    { margin-top: 8px; }
.mt-16   { margin-top: 16px; }
.mt-20   { margin-top: 20px; }
.mb-0    { margin-bottom: 0; }
.text-center { text-align: center; }

/* ---- Responsive ---- */
@media (max-width: 480px) {
    body.login-page { padding: 16px; align-items: flex-start; padding-top: 40px; }
    .lg-card { padding: 28px 24px 24px; }
    .lg-title { font-size: 20px; }
    .lg-pwd-rules { grid-template-columns: 1fr; }
}